My son bought these for me last year this time. Never installed them and they are taking up space in my garage. They are for sale for $100 plus S&H. Regular price is $200: http://www.shelbystore.com/product-p/7S3Z-16C630-B-fslash-C.htm The box has NEVER been opened. Ping me if interested at [email protected] for a quicker response. Why am I selling? Sold the GT500 and moved into a GT500KR. No longer needed.